Liquid-fuel atomizer



July 9, 1929. A,C,BOYD 1719,869

LIQUID FUEL ATOMI ZER Filed NOV. l, 1923 'f ,gq/M@ @M Patented July 9, 1929.

i rilassa ARTHURC. BOYD, 0F MAYW'OOID, ILLINOIS.

LIQUID-FUEL ATOMIZER.

Application filed November 1, 1923. Serial No. 672,075.

rlhis invention relates to a liquid fuel atoinizer and concerns itself with a structure comprising a stack of loosely piled and very thin rings arranged in superposed relation, together with means for imparting a high rate of rotation to said structure whereby sullicient centrifugal force is produced for atomizing a weak or dripping flow of liquid fuel. j

The invention comprises the novel structure and combination of parts hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings, which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the diffen ent views, Fig. l is a vertical sectional view through a liquid fuel atomizer involving this invention.

Fig. 2 is a sectional view taken upon the line 2-2 of Fig. l.

Fig. 3 is an enlarged fragmentary sectional view through a stack of atomizing rings involving this invention.

In the chosen embodiment of this invention there is shown an atomizer f7 consisting of a casing section 51 which is closed by a cover f8 that telescopes over the upper portion of the casing section. The casing section is provided with a radially extending flange or seat 47 upon which a stach of exceedingly thin atomizing rings 2.8 are supported. The atomizing rings are preferably flat and they are loosely arranged upon one another so that adjacent rings normally contact each other. The outer periphery of each ring is preferably of a converging nature and comes to a point as indicated at 23 in Fig. 3. rlhe width of each ring should prete `ably be about two and one-half thousandths of an inch (.0025) in thickness. The aforc-mentioned cover i8 is retained in position by a pair of bolts i9 which extend through the bottom of the casing. 'Ihe lower ends of these bolts are equipped with adjustable nuts and the edge of the telescoping flange of the cover is located directly above the stack of atomizing rings 28. It will be appreciated that by adjusting the nuts it is possible to vary the ring space in order to provide for the proper separation of the rings during the atomizing operation. Usually a very minute separation of the atomizing rings is all that is required. However, by properly adjusting the cover the degree of separation of the rings may be varied to suit the exigencies of a particular case.

It will be noted that the casing 5l is provided with concave recesses and slots 5() through which the liquid fuel is adapted te be expelled from the interior of the casing. Any means may be provided for supplying fuel to the interior of the casing. In the present instance, there is shown a supply pipe 53 extending into the casing. The sup ply pipe is shown as extending through a hollow shaft 52 upon the casing section 5l. This hollow shaft 52 affords a means for rotating the casing at a sufficiently high rate of speed for producing the desired centrifugal force.

In the operation of this invention it is contemplated that the fuel may be supplied in a slow or weak stream or what may be termed a dripping stream, so that there is seldom any appreciable quantity of fuel in the casino: Under such conditions the cas ing with the atomizing rings is rotated very rapidly for producing sufficient centrifugal force for expelling the liquid fuel through the slots and between adjacent atomizing rings, which are susceptible of minute separation according to the adjustment of the cover element 4:8. Under a very fine adjustment, the liquid fuel will be very thoroughly and minutely atolnized and will emerge from the out-er peripheries of the ring in the form of a mist or fog.

lVhile I have not illust-rated any particular manner in which this atomiaer may be utilized, it will be appreciated that it will find ready application in internal coinbustion engines, liquid fuel heaters and any ap paratus requiring the atomization of liquid fuel..

I am aware that numerous details of construction may be varied without departing from the principles of this invention, and I do not propose limiting the patent otherwise than necessitated by the prior art and the appended claims.

I-Iaving described my invention, what I claim and desire to secure by Letters Patent 1s:

1. A liquid fuel atomizer comprising a rotatable member, a plurality of very thin rings in superposed relation on said member, adjacent rings being normally in contact with each other, means for confining said verging periphery, means forl rings for minute separation and means for supplying a stream of liquid fuel interiorly of said rings.

2. A liquid fuel atomizer comprising a rotatable member, a plurality of very thin rings in superposed relation on said member, adjacent rings being normally in Contact With each other and each ring having` a consupplying a stream of liquid interiorly of said rings and means for rapidly rotating said member for the purpose set forth.

3. In a` liquid fuel atomizer a casing having,T :an annular' seat, a stack of thin atomizing rings loosely piled in superposed relation upon said seat, adjacent rings being normally in contacting relation, adjustable means for varying the confining space of said rings and for allowing minute separation of said rings, moans for supplying liquid fuel interiorly of said rings and means for rotating said. easing.

4. A liquid fuel atomizer con'iprisin,Y a rotatable member and a stack of aton'iizing rings substantially two and one-half (.0025) thousandths of an inch in thickness, :1rranged in superposed relation with adjacent rings in Contact with each other, supported by said member and means for supplyinfjT liquid fuel interiorly of said rings.

In Witness whereof, I have hereunto set my hand this 30th day of October, 1923.

ARTHUR C. BOYD. 

